Input and output devices 2015
- 1. Input andInput and Output Devices &Output Devices & NewNew TechnologiesTechnologies
- 2. 2.1- Input devices and there uses2.1- Input devices and there uses 1. An input device transfers data from the outside world into a computer. 2. There are two different categories of input device. They are : Manual input devices: User must enter data into the computer by hand. Direct Data Entry (DDE) Devices : Transfers information automatically from a source document such as a form or barcode into the computer. 3. Important criteria for comparing input devices are : suitability to application, input speed, cost and reliability. 4. There are many different input devices available. The key features of each input device are outlined in the table below.
- 8. Radio Frequency IdentificationRadio Frequency Identification What is it? Is an abbreviation for Radio Frequency Identification. This is a term used to describe a type of wireless technology used to identify objects, animals (or people)
- 9. RFID systems can be used just about anywhere: from clothing Missiles pet tags food anywhere that a unique identification system is needed. The tag can carry information as simple as a pet owners name and address to as complex as instructions on how to assemble a car. Some auto manufacturers use RFID systems to: move cars through an assembly line. At each successive stage of production, the RFID tag tells the computers what the next step of automated assembly is.
- 10. 1. Businesses that want to keep track of their stock as it moves from one place to another. For example, many parcel delivery companies now offer the ability for you to check where your parcel is as it is being delivered. They can do this by attaching an RFID tag on the parcel, then a reader at each main point of its journey keeps track of its progress. 2. Security systems that can sense the identity of the person wanting access to a restricted area. The person wears an RFID tag, so when they approach a reader, it can request an identity check without the person having to do anything. Who uses it?Who uses it?
- 11. 3. Anti-theft Many shops use RFID to deter shop-lifting. Have you noticed some shops have some tall objects standing either side of the doors? You have to walk between them in order to leave the shop. This is part of an RFID system. Many of the more expensive items in the shop will have hidden RFID tags. If you try and walk out of the shop, the Readers either side will request the tag for its code - that code is checked against a database to see if it has been paid for yet. If not, the alarm sounds. Another reader is located beneath the desk by the till. As you pay, they slide the object over the reader to register it is as having been been paid for. 4. Passports. Many countries, including the UK now use RFID tags inside passports. The tag not only identifies the person, but also stores a digital photograph and a record of their movement in and out of the country. In order to reduce the chance of someone 'skimming' that information, the passport contains a metal film to prevent them being read when closed.
- 12. Images of different types of RFIDImages of different types of RFID tagstags
- 14. Examples of Output devicesExamples of Output devices
- 15. 3D printers3D printers 3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printedobject is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the entire object is created.
- 16. Images of 3d printersImages of 3d printers
- 17. What is Monitor LEDWhat is Monitor LED Light-Emitting Diode (LED) Monitors. Light-emitting diode (LED) computer monitors do not use cold- cathode technology and fluorescent technology. Instead, light diodes illuminate the screen in one of two different ways, or a combination of both.
- 18. Images of Monitor LEDImages of Monitor LED
- 20. Definition: New technologies are those that are currently being developed or will be developed in the next 5 to 10 years, and which will alter the business and social environment.
- 21. The technologies include;The technologies include; Artificial Intelligence Biometrics Robotics Quantum Cryptography Computer assisted translation 3D and holographic imaging Virtual reality
- 22. Artificial Intelligence (AI)Artificial Intelligence (AI) This is a computer science that is focused on creating computer systems that simulate human intelligence. Impacts of AI on everyday life: Accurate prediction of weather Increased leisure time Safe Transport-driverless trains, cars that self park Improved medical care- robotic surgery assistants
- 23. BIOMETRICSBIOMETRICS Biometrics is where parts of a person's body are used for identification purposes. Impacts of Biometrics on everyday life: Better airport security Increased building security Reduced car theft Face recognition software can recognize people. More secure mobile phones
- 24. Quantum CryptographyQuantum Cryptography Quantum cryptography (encryption) is an emerging technology that allows messages and data to be sent with complete privacy. Impacts of Quantum Encryption on everyday life: Completely secure voting Completely secure communication Completely secure bank transfers
- 25. Computer Assisted TranslationComputer Assisted Translation (CAT) (CAT) Impacts of Computer Aided Translation on everyday life: More accurate documents A more multilingual society- language translators Quicker and more efficient translations
- 26. 3D and Holographic Imaging (aka3D and Holographic Imaging (aka holograms)holograms) Def: This is a technique where images are made to appear three- dimensional and to actually have depth. Impacts of 3D Imaging on everyday life: Improved security Better movie experiences Greater data storage
- 27. Virtual RealityVirtual Reality Virtual reality is where computers are used to create an artificial environment that users can interact with as if it were real. Impacts of Virtual Reality on everyday life: Improved medical surgeons Larger and stronger buildings Training in dangerous situations More realistic education- More effective treatment of phobias
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